William Douskalis

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Centreville, VA, US

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Patents Grantslast 30 patents

Information Patent Grant
Data matrix method and system for distribution of data
- Patent number 7,984,127
- Issue date Jul 19, 2011
- Sprint Spectrum L.P.
- William Douskalis
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Call tones in communication networks
- Patent number 6,731,738
- Issue date May 4, 2004
- Sprint Communications Company, L.P.
- Chaoxin Charles Qiu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Continuity testing with call tone messaging in communication networks
- Patent number 6,728,362
- Issue date Apr 27, 2004
- Sprint Communications Company, L.P.
- Chaoxin Charles Qiu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Continuity testing in communication networks
- Patent number 6,640,318
- Issue date Oct 28, 2003
- Sprint Communications Company, L.P.
- Chaoxin Charles Qiu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Data matrix method and system for distribution of data
- Publication number 20040213230
- Publication date Oct 28, 2004
- Sprint Spectrum L.P.
- William Douskalis
- H04 - ELECTRIC COMMUNICATION TECHNIQUE